Bede

And when I had heard this word, I tore my garment, etc. Ezra reveals the deepest sorrow of his heart, he tore his clothing, plucked the hairs of his head and beard; he sits in mourning, so that by such dishonoring of his body and clothing, along with the sorrow of his face, he might more quickly rouse all hearts to repentance either for their own or their brothers' sins, because clothing is often used to signify our deeds, which either bring us to glory if clean, or to destruction if soiled, and do not commend themselves with the …

Commentary on Ezra and Nehemiah ↗